9 files changed, 12 insertions, 87 deletions
diff --git a/samples/bpf/xdp_redirect_map_user.c b/samples/bpf/xdp_redirect_map_user.c
index 1dbe7fd3a1a8..be317f5f058f 100644
--- a/samples/bpf/xdp_redirect_map_user.c
+++ b/samples/bpf/xdp_redirect_map_user.c
@@ -1,13 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* Copyright (c) 2017 Covalent IO, Inc. http://covalent.io
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
  */
 #include <linux/bpf.h>
 #include <linux/if_link.h>
diff --git a/samples/bpf/xdp_redirect_user.c b/samples/bpf/xdp_redirect_user.c
index e9054c0269ff..09747bee6668 100644
--- a/samples/bpf/xdp_redirect_user.c
+++ b/samples/bpf/xdp_redirect_user.c
@@ -1,13 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* Copyright (c) 2016 John Fastabend <john.r.fastabend@intel.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
  */
 #include <linux/bpf.h>
 #include <linux/if_link.h>
diff --git a/samples/mic/mpssd/micctrl b/samples/mic/mpssd/micctrl
index 8f2629b41c5f..030a60b04046 100755
--- a/samples/mic/mpssd/micctrl
+++ b/samples/mic/mpssd/micctrl
@@ -1,20 +1,9 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
 # Intel MIC Platform Software Stack (MPSS)
 #
 # Copyright(c) 2013 Intel Corporation.
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License, version 2, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# The full GNU General Public License is included in this distribution in
-# the file called "COPYING".
-#
 # Intel MIC User Space Tools.
 #
 # micctrl - Controls MIC boot/start/stop.
diff --git a/samples/mic/mpssd/mpss b/samples/mic/mpssd/mpss
index 5fcf9fa4b082..248ac7313c71 100755
--- a/samples/mic/mpssd/mpss
+++ b/samples/mic/mpssd/mpss
@@ -1,20 +1,9 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
 # Intel MIC Platform Software Stack (MPSS)
 #
 # Copyright(c) 2013 Intel Corporation.
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License, version 2, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# The full GNU General Public License is included in this distribution in
-# the file called "COPYING".
-#
 # Intel MIC User Space Tools.
 #
 # mpss	Start mpssd.
diff --git a/samples/mic/mpssd/mpssd.c b/samples/mic/mpssd/mpssd.c
index f42ce551bb48..a11bf6c5b53b 100644
--- a/samples/mic/mpssd/mpssd.c
+++ b/samples/mic/mpssd/mpssd.c
@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Intel MIC Platform Software Stack (MPSS)
  *
  * Copyright(c) 2013 Intel Corporation.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
  * Intel MIC User Space Tools.
  */
 
diff --git a/samples/mic/mpssd/mpssd.h b/samples/mic/mpssd/mpssd.h
index 82d3b519f0e7..5f98bdafe653 100644
--- a/samples/mic/mpssd/mpssd.h
+++ b/samples/mic/mpssd/mpssd.h
@@ -1,20 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Intel MIC Platform Software Stack (MPSS)
  *
  * Copyright(c) 2013 Intel Corporation.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
  * Intel MIC User Space Tools.
  */
 #ifndef _MPSSD_H_
diff --git a/samples/mic/mpssd/sysfs.c b/samples/mic/mpssd/sysfs.c
index 8dd326936083..3fb08eb7ed9d 100644
--- a/samples/mic/mpssd/sysfs.c
+++ b/samples/mic/mpssd/sysfs.c
@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Intel MIC Platform Software Stack (MPSS)
  *
  * Copyright(c) 2013 Intel Corporation.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
  * Intel MIC User Space Tools.
  */
 
diff --git a/samples/pidfd/pidfd-metadata.c b/samples/pidfd/pidfd-metadata.c
index 640f5f757c57..14b454448429 100644
--- a/samples/pidfd/pidfd-metadata.c
+++ b/samples/pidfd/pidfd-metadata.c
@@ -21,6 +21,10 @@
 #define CLONE_PIDFD 0x00001000
 #endif
 
+#ifndef __NR_pidfd_send_signal
+#define __NR_pidfd_send_signal -1
+#endif
+
 static int do_child(void *args)
 {
 	printf("%d\n", getpid());
diff --git a/samples/rpmsg/rpmsg_client_sample.c b/samples/rpmsg/rpmsg_client_sample.c
index f161dfd3e70a..2a0695573b47 100644
--- a/samples/rpmsg/rpmsg_client_sample.c
+++ b/samples/rpmsg/rpmsg_client_sample.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Remote processor messaging - sample client driver
  *
@@ -6,15 +7,6 @@
  *
  * Ohad Ben-Cohen <ohad@wizery.com>
  * Brian Swetland <swetland@google.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/kernel.h>